- The different types of data we need to know are:
Primary data – data collected from an original source
Secondary data – data collected from a secondary source
Qualitative data – non-numerical data
Quantitative data – numerical data
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Organizing Data
-Tallies and frequency tables.
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Tally and frequency table
A tally is a mark made to keep count of the number of values within the interval. These tally marks are often grouped together in fives
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Tally and frequency table
A tally is a mark made to keep count of the number of values within the interval. These tally marks are often grouped together in fives.
The frequency table shows how often the values within the interval occur
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How to draw a tally- frequency chart
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Example 2: Grouped data
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Example 2: Grouped data
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Example 2: Grouped data
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Now you try!
- Take the box of smarties (provided by Mrs. Verhaar)make a picture of all smarties on a paper with your name. Then make a tally-frequency table in your notebook and in Word (save the document).
